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Data Policy
Access to and use of "global data sets of satellite-derived crop calendar for agricultural simulations (SACRA)" is provided subject to the terms and conditions. PLEASE READ BELOW CAREFULLY AS USE OF THE DATA CONSTITUTES ACCEPTANCE OF THESE TERMS AND CONDITIONS.
- CHARGE and PURPOSE: SACRA is provided for free of charge, mainly for research and education purposes.
- DISCLAIMER: SACRA is provided 'AS IS', without warranties of any kind. We can not take any responsibilities that may be caused by the use of SACRA.
- DATA QUALITY: About details of data quality and verification of SACRA, please see the reference paper (Kotsuki and Tanaka, 2015; HESS).
- APPLICABLE LAWS: These terms and conditions shall be construed in accordance with the laws of Japan.
Download (version 1.00; Kotsuki and Tanaka 2015, HESS)
| Description | Sample Image | Binary (w /GrADS ctl) |
| Global Map of Planting and Harvesting Dates (day of year) | click | download (33Mb) |
| Global Map of Cropping Intensity (yr^-1) | click | download (03Mb) |
| Global Map of Dominant Crop (crop species) | click | download (03Mb) |
| Global Map of Time Series of NDVI (10-days composite) | click | download (191Mb) |
| ALL | - | download (219Mb) |
History Oct. 2015 v1.00 released Jun. 2016 v1.01 released (added ascii data wo/ NDVI)
Reference
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Kotsuki S. and K. Tanaka (2015):
SACRA - a method for the estimation of global high-resolution crop calendars from a satellite-sensed NDVI. Hydrology and Earth System Sciences, 19, 4441-4461. doi: 10.5194/hess-19-4441-2015. doi: 10.5194/hess-19-4441-2015
